Spinning frame



June 5, 1923. 1,457,405

M. SPENCER SPINNING FRAME Filed Nov. 15' 1917 2 Sheets-Sheet 1 I ma //9June 5, 1923. 1,45 7,405

MfsPENcER SPINNING FRAME Fi led Nov. 15 1917 2 Sheets-Sheet 2 1 PatentJune 5, 123.

MOSES SPENCER, OF SAYLESVILLE, RHODE ISLAND, ASSIGNOR, BY MESNE ASSIGN-MENTS, TO HOPEDALE MANUFACTURING COMPANY, OF MILFORD, MASSACHUSETTS,

A CORPORATION OF MASSACHUSETTS.

To all whom it may concern Be it known that I, Mosns SPENCER, a citizenof the United States, residing at Saylesville, in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Spinning Frames; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

The present invention relates to an improvement in spinning frames, andmore particularly the invention relates to an 1mprovement inbunch-building mechanisms.

The object of the invention is to improve and simplify the constructionof bunchbuilding mechanisms in order that these mechanisms and devicesmay perform their 20. respective functions more efiiciently. To theaccomplishment of this object and such other objects as shallhereinafter appear, the invention consists in the improved spinningframe described and particularly pointed out in the followingspecification.

In the accompanying drawings illustrating the preferred form in which itis contemplated embodying the invention, Figure 1 is a front elevationof aportion of a spinning frame showing the application thereto of thebunch-building mechanism; Fig. 2 is an enlarged view of the butt end ofa bobbin showing the preliminary bunch as spun thereon by thebunch-building mechanlsm;

5 Fig. 3 is a side elevation on an enlarged scale of a part of thebunch-building mechanism and adjacent parts of the spinning frame; Fig.4 is a plan of the parts shown in. Fig. 3; and Fig. 5 is'a detail of thecam gear showing it in a different position.

In its general features of construction, the spinning frame to which theimproved bunchbuilding mechanism is applied, may be of any usual orpreferred form and may be used for the spinning of woolen or cottonyarns. The spinning frame illustrated in the drawings comprises aspindle rail 9 secured to the frame 10 of the machine. Mounted on thespindle rail 9 are the spindles 11 which carry the bobbins 12, uponwhich the yarn 13 is spun. The laying of successive layers of yarn uponthe bobbins is ef-- fected by the up and down traverse of the on rolls01' wheels 22journa1ed in a bracket 23 fastened to the frame of themachine.

At the beginning of the spinning operation the carriage 20 makes itsregular reciprocatory motion at the limit of its rightward movement, asshown in Fig. 1, thereby holding the lifter rail 14 raised in order thatthe butt of the bobbins may be spun first. Throughout the spinningoperation the carriage progressively approaches the limit of itsleftward movement, thereby permitting the lifter rail and bobbins toprogressively descend. The movements of the carriage 20 to the right, asviewed'in Fig. 1, in order to raise the lifter rail, are imparted by aheartshaped cam 25 mounted on the end of a rotating shaft 26. The cam 25engages a cam roll 27 carried .by an oscillatory arm 28 pivoted at 29 ona block 24'adjustably secured on the machine frame; The side 30 of thelower end of the arm 28 engages a roll 32 pivoted on a block 33adjustable vertically on a lever 34 fulcrumed at 35 on a bracket 36. Theupper end 38 of the lever 34 is guided in its oscillatory movements byan arc-shaped plate or guide 39. The lever 34 carries aninternally-threaded nut 40 which receives a worm 41 formed on a shaft 42journaled in the machine frame. The headed end 43 of the worm 41 looselyengages a block 44 fixed on the carrige 20.

The oscillatory movements of the lever 34 caused by the rotation of theheart-shaped cam, imparts a reciprocatorymotion to the shaft 42 and thecarriage 20, the connections between the lever 34 and the nut 40 beingsuch, as to permit the necessary relative motion between the two. Thecarriage 20 is connected with the, left-hand lifter rod 15 by means ofa.chain 46, the lower end of which is fastened to a collar 47 adjustablysecured to the lower end of the lifter rod. The chain 46 passes over anidler 48 pivoted on the bracket 23. The downward traverse therewith. Thegear 50 is driven by; a gear 51 which in turn is driven from a suitablesource of power.

7 The building of the preliminary bunch 5 5' on the butt end of thebobbins is eiiected by holding the carriage 20 substantially station aryat the limit of its rightward movement, for a predetermined length oftime at the beginning of the spinning operation. This is accomplished bythe bunch-building mechanism which comprises a lever 55 pivoted at 56and having a hooked end which is adapted at the proper time to engage astop lug58 secured to the carriage 20. The engagement of the hookedlever-55 with the stop lug 58 prevents the leftward movement of thecarriage, thereby permitting the bunch to be built on the butt end ofthe bobbins. It will.

be understood that the engagement of the book 55 with the stop lug 58does not absolutely prevent all movement of the carriage 20, but thatthe latter will have a slight movement as the tip of the heart-shapedcam 25 passes the cam roll 27. This slight movement of the carriage issuflicient to impart a small vertical traverse to the lifter rail,

- and consequently the preliminary winding or bunch will not be built upon one point, but will be distributed over a short length of the butt,as shown in Fig. 2.

"the spinning frame. During the regular The hook is lowered intoengagement with the stop lug 58, at the beginning of the spinningoperation, b the clockwise oscillation of a bellcrank ever 59 pivoted at60 on the machine frame. The lever 59 is connected with the hook 55 by as ring 61, so that if the bellcrank is actuate to lift the hook 55 whilethe carriage is attempting to move toward the left, a straining of theparts will not ensue. The bellcrank lever 59 is connected by means of alink 62 with a lever 63, which carries a cam roll 64 arranged to travelin a cam path 65 grooved in the web of a cam which is formed as amutilated or interrupted gear 67 pivoted on a stud 68 secured to abracket 69 fastened to the end of spinning operation, the cam gear orcam 67 is maintained in the position shown in Fig. 4, which may becalled its normal or inoperative position, and the hook 55 is therebyheld raised; but during the building of the preliminary bunch the camgear 67 is in its operative position as shown in Fig. 5, with its camgroove in such position that the link 62 is moved to the right (asviewed inFig. l)

memos to permit the hook 55 to lowered into the path of the stop lug 58.The cam gear 67 1s turned into thG'POSItlOII of Fig. 4 by a pinion 71loosely mounted on the lower end of a vertically disposed shaft 72,which rotates constantly in the direction indicated by the arrow in Fig.4 and is driven by a constantly rotating worm 73. The driving connectionbetween the shaft 72 and the pinion 71 consists of a collar 74 looselymounted on the shaft 7 2 and in key and key-way connection therewith.lhe lower end of the collar 74 is provided with ratchet teeth which areadapted to mesh with corresponding teeth on the pinion. When the camgear 67 has been turned into the position of Fig. 4, it is held thereinby the engagement of a wedgeshaped stop lug 76 secured to the cam gear,

with a stop lever 77 pivoted at 78 on an upward extension of the stud68. A contraction spring 79 tends to hold the stop lever downward in theposition shown in Fig. 3, and the collar 7 4 in mesh with the pinion 71.

At the beginning ofthe spinning operation when the preliminary bunch isto be built, the collar 74 is disconnected from the pinion 71 and thestop lever is raised and disengaged from the stop lug 76. Thereupon aspring 81, fastened at one end to the bracket is wrapped around andsecured to the hub of the cam gear 67, acts to turn the cam gear intoits operativeposition, as shown in Fig. 5. The amount of rotation of thecam gear, which is determined by the length of time" the hook 55. is toengage the stop 58, which in turn is determined by the amount of yarnnecessary to constitute the preliminary bunch, is limited by anadjustable stop 83 which, as the cam gear turns, is brought up againstthe cam roll '64.v The collar 74 is disengaged from the pinion 71 andthe stop lever 77 is raised by means of a lever 84 ivoted at 85 on astud86 rising from the gages a vertical slot 88 in the free end of' the stoplever 77. This slot 88 permits the stop lever to rise withoutdisengaging the collar 74 from the pinion 71, when the gear 67 is beingturned into ino rative position and the wedge-ska ed stop ug 76 passesunder the stop lever 7. The outer end "of the lever-84 is articulated bymeans of a link 90 with a hand lever 91 pivoted at 92 on the machineframe. Thelever 91 is manipulated by the operator, in order todisconnect the collar 74 from the pinion 71 and to raise the stop lever77 by .means of a handle 93. The handle 93 is integral with the arm 94of the hand lever 91. This arm 94 is curved at 95 tofit a groove 96inthe hub otthe gear 50; the

69 and at the other end to a strap 82 which 9 gear is thus preventedfrom axial movement with the shaft 42 during the regular spinningoperation.

The building of the preliminary bunch on the butt end of the'bobbins isnecessarily performed at the beginning of the spinning operation byreason of the construction and arrangement of the parts of the spinningframe. The progressive movements of the carriage toward the left (asviewed in Fig. 1) as the spinning proceeds, leaves the carniagesubstantially at the limit of its leftward movement at the completion ofthe spinning operation. Before the spinning of the next set of bobbinscan be commenced, it will be necessary for the operator to return thecarriage to its initial position, that is, to the limit of its rightwardmovement. This he does by turning the hand Wheel 97 fixed on the outerend of the shaft 42. Before the shaft 42 can be rotated, however, thegear 50 musbe disconnected from the gear 51, and before this can bedone, the operator must disengage the hand lever 91 from the groove inthe gear 50. In doing so, he oscillates the lever 84, therebydisconnecting the collar 74 from the pinion 71 and raising the stoplever 77. Thereupon the spring 81 acts to turn the cam gear 67 intooperative position, by which movement the bellcrank 59 is oscillated ina clockwise direction and the hook'55 is lowered into the path of thestop lug 58. It is thus seen that the preliminary bunch building isnecessarily incident to the spinning operation.

- The amount of yarn constituting the preliminary bunch is dependentupon the length of time the hook is in engagement with the stop lug 58,and this in turn is dependent upon the rate of rotation of the shaft 72and the adjustment of the stop 83. Before the operator restarts thespinning frame in operation, he must slide the gear 50 into mesh withthe gear 51. Having done so he rev leases the handle 93, and thereuponthe spring 79 slides the collar 74 into mesh with the pinion anddepresses the stop lever 77 into operative position. Incidentally, thecurved part 95 of the arm 94 is inserted in the groove 96. The rotationof the pinion 71 now turns the cam gear 67 from the position of Fig. 5to that of Fig. 4. It will be seen that the nearer the stop 83 is set'tothe active part 98 of the cam path 65, the shorter time the hook 55 willbe in engagement with the stop 58.

The stopping devices for automatically stopping the spinning frame uponthe com pletion of the spinning operation, comprise a bellcrank lever100, by the oscillation of which in a clockwise direction the shipper101 is actuated to shift the belt 102 from the fast pulley 103 to theloose pulley 104-. The bellcrank lever 100 is oscillated by a lever 106piv ted on an upright 107 fixe on the biock end of the rod terminatesbelow a horizontally disposed shipper rod 114, the outer end of which isloosely received in a slot 115in the bracket 113. During the spinningoperation the outer end of tlie shipper rod is depressed and a notch 116therein engages the lower end of the slot 115. But when the bellcrank100 is oscillated at the completion of the spinning operation, the rod111 is raised and brought up against rod; the notch 116 of the latter isthereby disconnected from the bracket 113, and there upon a spring 118acts to draw the shipper rod 114 to the right (as viewed in Fig. 1). Themovement of the shipper rod to the right, actuates the shipper 101 withwhich the rod 114 is connected by the arm 119, the bar 120 and the arm121. The actuation of the shlpper 101, asbefore described, shifts thebelt 102 from the loose pulley 104 and stops the machine.

The objects of the present invention have been pointed out". and aspecific form of mechanism has been illustrated and described forcarrying out these objects. It will be understood, however, that theinvention is not limited to the specific form shown and described, butmay be embodied in other forms without departing from the spirit of thefollowing claims.

Having thus described the invention, What IS claimed is 1. A spinningframe having, incombinatlon, spinning devices including areciprocatmgcarriage, and a bunch-building device cpmprising a cam, arotating shaft, connections between the two whereby the former may beturned into inoperative position by the latter, means for turning thecam into operative position, means under the con trol of the operatorand adapted to be brought into operation when the operator restarts thespinning operation for disconnecting the shaft from the cam to permitthe latter to be turned into its operative position, connections betweenthe cam and the reciprocating carriage for limiting the movement of thecarriage for a predetermined length of time toproduce a relatively shorttraverse, andmeans for reconnecting the shaft with the cam to permit thecarriageto resume its reciprocations.

2. spinning frame having-{in combination, spinning devices including arecipmfast pulley 103 to the the shipper eating carriage, and abunch-building device comprising a cam, connections between the cam andthe carriage adapted to limit the movement of the latter for apredetermined length of time at the beginning of the spinning operationto produce a relatively short traverse, and means for turning the caminto operative position and for thereafter returning it to inoperativeposition, said means comprising a rotating shaft and means under thecontrol of the operator for disconnecting the shaft from. the cam andfor thereafter operativelyv connecting the shaft with the cam.

3. A spinning frame having, in combination, spinning devices including areciprocating carriage, and a bunch-building device comprising a cam, arotating shaft, connections between the shaft and the cam adapted toturn the latter into inoperative position, means for turning the caminto operative position and means under the control of the operator fordisconnecting the shaft from the cam to permit it to be turned tooperative position, and connections between the cam and thereciprocating carriage.

' 4. A spinning frame having, in combina tion, spinning devices, and abunch building mechanism comprising a rotating shaft, a gear looselymounted thereon and having provision whereby it may be rotated by theshaft, a second gear adapted to be actuated by the first gear, and meanscooperating With the second gear and with the spinning devices wherebythe vertical movement of the latter may be limited at the beginning ofthe spinning operation.

5. A spinning frame having, in combination, spinning devices including areciprocating carriage, and a bunch-buildingdevice comprising a rotatingshaft, a cam, operative connections between the cam and thereciprocating carriage adapted to limit the movement of the latter atthe beginning of the spinning operation when the cam is in operativeposition to produce a relatively short traverse, means for turning thecam into operative position, and means connected with the shaft forreturning the cam to inoperative position.

6. A spinning frame having, in combination, spinning devices including areciproeating carriage, and a bunch-building de-' vice comprising a cam,means actuated by the cam and cooperating with the carriage adapted tolimit the movements of the carriage when the cam is in operativeposition to produce a relatively short traverse, and

means under the control of the operator for turning the cam intooperative position when cam into operative position and for there-.

after returning it to inoperative position.

8. A spinningframe having, in combination, spinning devices and a bunchbuilding mechanism comprising means for imparting a normal traverse tothe spinning devices including a cam for moving the spinning devices inone direction, and a hook for limiting the return movement of thespinning devices to thereby impart t0 the spinning devices traverses ofrelatively short extent upon successive revolutions of the cam.

9. A spinning frame having, in combination, spinning devices, actuatingmeans for imparting a normal traversev thereto, and a hook for limitingthe return movement of the spinning devices during each traverse thereofto therebycause said actuating means to impart to the spinning devicestraverses of relatively short extent.

\ MOSES seasons.

